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What to Wear? What to Drink? Weather Patterns and Climatic Regions

How does our climate affect us? How do we decide what to wear each day? What factors determine if our clothing choices are comfortable? What is the source of our water? Students explore characteristic...
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4 (3-5) Lesson 2506
Designing Bridges

Students learn about the types of possible loads, how to calculate ultimate load combinations, and investigate the different sizes for the beams (girders) and columns (piers) of simple bridge design. ...
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8 (6-8) Lesson 2389
Hydrogen-Oxygen Reaction Lab

This lab exercise exposes students to a potentially new alternative energy source—hydrogen gas. Student teams are given a hydrogen generator and an oxygen generator. They balance the chemical equati...
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9 (9-12) Activity 2373
Strength of Materials

Students learn about the variety of materials used by engineers in the design and construction of modern bridges. They also find out about the material properties important to bridge construction and ...
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8 (6-8) Lesson 2194
Do Different Colors Absorb Heat Better?

Students test whether the color of a material affects how much heat it absorbs. They leave ice cubes placed in boxes made of colored paper (one box per color; white, yellow, red and black) in the sun,...
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1 (0-2) Activity 2129
What Is the Best Insulator: Air, Styrofoam, Foil or Cotton?

That heat flows from hot to cold is an unavoidable truth of life. People have put a lot of effort into stopping this natural physical behavior, however all they have been able to do is slow the proces...
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4 (3-5) Activity 1974
Straw Bridges

Working as engineering teams, students design and create model beam bridges using plastic drinking straws and tape as their construction materials. Their goal is to build the strongest bridge with a t...
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8 (6-8) Activity 1819
Engineering: Simple Machines

Simple machines are devices with few or no moving parts that make work easier. Students are introduced to the six types of simple machines — the wedge, wheel and axle, lever, inclined plane, screw, ...
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4 (3-5) Lesson 1600
Powerful Pulleys

Students continue to explore the story of building a pyramid, learning about the simple machine called a pulley. They learn how a pulley can be used to change the direction of applied forces and move/...
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4 (3-5) Lesson 1520
Earthquake in the Classroom

Students learn how engineers construct buildings to withstand damage from earthquakes by building their own structures with toothpicks and marshmallows. Students test how earthquake-proof their buildings are by testing them on an earthquake simulated in a pan of Jell-O®. 5 (3-5) Activity 1410
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